fix: 给有 FK 依赖的建表脚本加数字前缀以保证字母序就是依赖序

desc/sql/community/10-post_likes.sql

@@ -0,0 +1,15 @@
+CREATE TABLE post_likes
+(
+    id         BIGINT PRIMARY KEY,
+    post_id    BIGINT      NOT NULL,
+    user_id    BIGINT      NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+
+    UNIQUE (post_id, user_id)
+);
+
+-- [核心索引] 优化 "feed流中判断我是否已赞" (user_id = ? AND post_id IN (...))
+CREATE INDEX idx_post_likes_lookup ON post_likes (user_id, post_id);
+
+-- [核心索引] 优化 "我赞过的帖子" 列表
+CREATE INDEX idx_post_likes_user_timeline ON post_likes (user_id, created_at DESC);